The gate valve
is the most widely used on/off valve for large diameter, full port applications. When the valve is fully open, it allows straight passage through an opening that is essentially the same size as the inside diameter of the connecting pipe, so there is little or no pressure drop through the valve. The valve operates when the hand wheel and stem screw move a cylindrical plug, the gate, up and down at right angles to the fluid flow. Gate valves are typically use for on/off service, but can also be used for throttling.
Title: How does a gate valve work?
Description: Explanation of how a gate valve works.
Last Edited: 9/18/2013
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